Graph: {2xy43x+4y12\displaystyle {\left\lbrace\begin{array}{c} {2}{x}-{y}\le-{4}\\-{3}{x}+{4}{y}\ge-{12}\end{array}\right.}
246810-2-4-6-8-10246810-2-4-6-8-10
Clear All Draw: Linear inequality, solid lineLinear inequality, dashed line